import os
import uuid

from info.models import User, Category, News
from flask import request, render_template, session, redirect, url_for, jsonify, current_app, abort
from info.modules.admin import admin_blu
from info.utils.response_code import RETCODE
import time, datetime
from datetime import timedelta, datetime
from info import constants, db


@admin_blu.route('/index')
def index():
    nick_name = session.get('nick_name')
    data = {
        'nick_name': nick_name
    }
    return render_template('admin/index.html', data=data)


@admin_blu.route('/login', methods=["GET", "POST"])
def login():
    if request.method == "GET":
        return render_template('admin/login.html')

    # 获取登录参数
    username = request.form.get("username")
    password = request.form.get("password")
    if not all([username, password]):
        return render_template('admin/login.html', errmsg="参数不足")

    try:
        user = User.query.filter(User.mobile == username).first()
    except Exception as e:
        return render_template('admin/login.html', errmsg="数据查询失败")

    if not user:
        return render_template('admin/login.html', errmsg="用户不存在")

    if not user.check_password(password):
        return render_template('admin/login.html', errmsg="密码错误")

    if not user.is_admin:
        return render_template('admin/login.html', errmsg="用户权限错误")

    session["user_id"] = user.id
    session["nick_name"] = user.nick_name
    session["mobile"] = user.mobile
    session["is_admin"] = True

    # 跳转到后台管理主页
    return redirect(url_for('admin.index'))


@admin_blu.route("/logout", methods=['POST'])
def logout():
    """
    清除session中的对应登录之后保存的信息
    :return:
    """
    session.pop('user_id', None)
    session.pop('nick_name', None)
    session.pop('mobile', None)
    session.pop('is_admin', None)
    # 返回结果
    return jsonify(errno=RETCODE.OK, errmsg="OK")


@admin_blu.route('/user_count')
def user_count():
    # 总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 月新增数
    mon_count = 0
    t = time.localtime()
    begin_mon_date_str = '%d-%02d-01' % (t.tm_year, t.tm_mon)
    # 将字符串转成datetime对象
    begin_mon_date = datetime.strptime(begin_mon_date_str, "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin == False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 日新增数
    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin == False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 拆线图数据

    active_time = []
    active_count = []

    # 取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")

    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到下一天的0点0分
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date,
                                  User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # User.query.filter(User.is_admin == False, User.last_login >= 今天0点0分, User.last_login < 今天24点).count()

    # 反转，让最近的一天显示在最后
    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count": active_count
    }

    return render_template('admin/user_count.html', data=data)


@admin_blu.route('/user_list')
def user_list():
    page = request.args.get("p", 1)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    users = []
    current_page = 1
    total_page = 1

    try:
        paginate = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(page,
                                                                                                       constants.ADMIN_USER_PAGE_MAX_COUNT,
                                                                                                       False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 进行模型列表转字典列表
    user_dict_list = []
    for user in users:
        user_dict_list.append(user.to_admin_dict())

    data = {
        "users": user_dict_list,
        "total_page": total_page,
        "current_page": current_page,
    }

    return render_template('admin/user_list.html', data=data)


@admin_blu.route('/news_review')
def news_review():
    page = request.args.get("p", 1)
    # 获取搜索框关键字
    keywords = request.args.get("keywords", None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status != 0]
    # 如果关键字存在，那么就添加关键字搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict = {
            'id': news.id,
            'title': news.title,
            'create_time': news.create_time,
            'status': news.status
        }
        news_dict_list.append(news_dict)

    context = {
        "total_page": total_page,
        "current_page": current_page,
        "news_list": news_dict_list
    }

    return render_template('admin/news_review.html', data=context)


@admin_blu.route('/news_review_detail')
def news_review_detail():
    news_id = request.args.get('news_id')
    # 通过id查询新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    news_dict = {
        'id': news.id,
        'title': news.title,
        'source': news.source,
        'digest': news.digest,
        'create_time': news.create_time,
        'content': news.content,
        'clicks': news.clicks,
        'category': news.category,
        'index_image_url': news.index_image_url
    }
    # 返回数据
    data = {
        "news": news_dict
    }
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route('/news_review_action', methods=["POST"])
def news_review_action():
    print('进来了。。。。。。。。')
    # 接受参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 参数校验
    if not all([news_id, action]):
        return jsonify(errno=RETCODE.PARAMERR, errmsg="参数错误")

    if action not in ("accept", "reject"):
        return jsonify(errno=RETCODE.PARAMERR, errmsg="参数错误")

    # 查询到指定的新闻数据
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RETCODE.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RETCODE.NODATA, errmsg="未查询到数据")

    if action == "accept":
        # 代表接受
        news.status = 0
        db.session.add(news)
        db.session.commit()
    else:
        # 代表拒绝
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RETCODE.PARAMERR, errmsg="请输入拒绝原因")
        news.status = -1
        news.reason = reason
        db.session.add(news)
        db.session.commit()

    return jsonify(errno=RETCODE.OK, errmsg="OK")


@admin_blu.route('/news_edit')
def news_edit():
    """新闻编辑"""
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", None)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status == 0]
    # 如果关键字存在，那么就添加关键字搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_edit.html', data=context)


@admin_blu.route('/news_edit_detail', methods=["GET", "POST"])
def news_edit_detail():
    if request.method == "GET":
        # 查询点击的新闻的相关数据并传入到模板中
        news_id = request.args.get("news_id")

        if not news_id:
            abort(404)

        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")

        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

        if not news:
            return render_template('admin/news_edit_detail.html', errmsg="未查询到数据")

        # 查询分类数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

        category_dict_list = []
        for category in categories:
            # 取到分类的字典
            cate_dict = category.to_dict()
            # 判断当前遍历到的分类是否是当前新闻的分类，如果是，则添加is_selected为true
            if category.id == news.category_id:
                cate_dict["is_selected"] = True
            category_dict_list.append(cate_dict)

        # 移除最新的分类
        category_dict_list.pop(0)

        data = {
            "news": news.to_dict(),
            "categories": category_dict_list
        }

        return render_template('admin/news_edit_detail.html', data=data)

    # 获取Post数据
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    # 判断数据是否有值
    if not all([title, digest, content, category_id]):
        return jsonify(errno=RETCODE.PARAMERR, errmsg="参数有误")

    # 查询指定id的
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RETCODE.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RETCODE.NODATA, errmsg="未查询到新闻数据")

    # 尝试读取图片
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RETCODE.PARAMERR, errmsg="参数有误")

        # 将标题图片上传到七牛
        try:
            a = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
            b = '/static/news/image/'
            c = str(uuid.uuid4())
            avatar_url = a + b + c
            index_image.save(avatar_url)
            key = a[32:len(a):1] + b + c
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RETCODE.THIRDERR, errmsg="上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key

    # 设置相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    return jsonify(errno=RETCODE.OK, errmsg="OK")


@admin_blu.route('/news_type', methods=["GET", "POST"])
def news_type():
    if request.method == "GET":
        # 查询分类数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_type.html', errmsg="查询数据错误")

        category_dict_li = []
        for category in categories:
            # 取到分类的字典
            cate_dict = category.to_dict()
            category_dict_li.append(cate_dict)

        # 移除最新的分类
        category_dict_li.pop(0)

        data = {
            "categories": category_dict_li
        }

        return render_template('admin/news_type.html', data=data)

    # 新增或者添加分类
    # 取参数
    cname = request.json.get("c_name")
    # 如果传了cid，代表是编辑已存在的分类
    cid = request.json.get("id")

    if not cname:
        return jsonify(errno=RETCODE.PARAMERR, errmsg="参数错误")

    if cid:
        # 有分类id 代表查询相关数据
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RETCODE.PARAMERR, errmsg="参数错误")

        if not category:
            return jsonify(errno=RETCODE.NODATA, errmsg="未查询到分类数据")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)

    return jsonify(errno=RETCODE.OK, errmsg="OK")
